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Tampilkan postingan dengan label bow. Tampilkan semua postingan
Tampilkan postingan dengan label bow. Tampilkan semua postingan

Sabtu, 20 Februari 2016

Bow Eyes and Stern Tiedowns

Sometimes little things can be a big headache. And sometimes big headaches can turn out not to be that big a deal at all. And so it was with the bow eyes and stern tiedowns.

Heres the idea, I have a trailerable shantyboat. It is really really nice if when I am towing down the road if it stays on the trailer. (See Tips on how not to die in a fiery ball of twisted metal on the highway.)

So we add a few hooks into the hull that allow us to attach it to the trailer.  Additionally, the boweye will allow us to winch the boat the last few feet onto the trailer, as well as be towed if we ever need to do that.


A boweye and a stern tiedown look pretty much the same -- typically a stainless steel U-bolt that ties into the framing members of the boat. The price of boweyes varied tremendously, and not necessarily commensurate with the quality of the hardware. That was frustrating. After lots of searching online, I found a high quality, reasonably priced set of boweyes/tiedowns.

I was not that excited about drilling more holes in my allegedly waterproof hull.  Additionally, since there wasnt space within the tight confines of the boat to drill from the inside, I had to drill a hole from the outside and yet still hit the precise center of a one and a half inch framing member.  Ack.



So this required a good deal of measurement, re-measurement, guess-work, and calculation.


Word on the street is that there is a clever device to make sure that the holes you drill are perpendicular to the plane of the surface you are drilling, a kind of portable drill press.  I dont have one of those.  I used my carpenters square to ensure that my hole was perpendicular.


Despite all my calculations, you can see my first hole that was vertically positioned too high.  Inside, the hole was positioned on the framing member without enough space to receive a nut. Laterally though, my holes were perfect positioned.

I considered epoxying the inside of the holes to prevent damage if water should get inside, but only primed the holes instead.


I used the special silicone adhesive and sealant (referred to around here as the Black Goo) on the portion that would rest against the hull before tightening the boweye. .


Inside the bulkhead under the desk, I tightened down the boweye.


Cleaning up the sealant, I had a beautiful boweye mounted to the center of the bow. Rinse, repeat, and I had the stern tiedowns bolted into the members beneath the stern.



It wasnt as hard as Id feared, nor as easy as I hoped. Awesome.
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Kamis, 04 Februari 2016

Bow Thruster


If you ever look out in harbor some day and see a trawler that hopefully looks like the picture on my header. And if that trawler is in the middle of the harbor fairway doing doughnuts, you can have this baby to thank for that ability.

As posted earlier on fabricating the bow thruster tube, Im going to have a bow thruster on my boat. My thruster is hydraulic and will run off of the live PTO on the main engine. Because the thruster is hydraulic, I can run the thing 24/7 if I want to. I dont have to worry about it over heating, or batteries going dead, solenoids failing, wire corrosion, bad connectors... you get my drift. I understand why most folks go with the electric thrusters, but in my opinion, the electric units are a distant second place to a hydraulic unit.

Fluid power is bullet proof, idiot proof, and lasts a stinking long time with extremely low maintenance. The best thing about hydraulic powered equipment, is that its there when you need it with power to spare for as long as you need power.

This unit was built by Key Power Equipment, and I cant say enough good things about those folks. Theres a link on this page if you want to contact them.
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